Nov 04 16:34:47.294 INFO checking threadpool-1.7.1 against master#2ad8c7b3502616aff142a4640cce911c6c2c5463 for pr-55655
Nov 04 16:34:47.296 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-7/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55655/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2ad8c7b3502616aff142a4640cce911c6c2c5463-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 04 16:34:47.803 INFO blam! 86c7ce8ad6c2a13c99f8d118e4f94585b5d90b839b6d200824067321a5072a11
Nov 04 16:34:47.806 INFO running `"docker" "start" "-a" "86c7ce8ad6c2a13c99f8d118e4f94585b5d90b839b6d200824067321a5072a11"`
Nov 04 16:34:49.067 INFO kablam! usermod: no changes
Nov 04 16:34:49.175 INFO kablam!     Checking threadpool v1.7.1 (/source)
Nov 04 16:34:50.405 INFO kablam! warning: unused arithmetic operation that must be used
Nov 04 16:34:50.405 INFO kablam!    --> src/lib.rs:815:36
Nov 04 16:34:50.405 INFO kablam!     |
Nov 04 16:34:50.405 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Nov 04 16:34:50.405 INFO kablam!     |                                    ^^^^^
Nov 04 16:34:50.405 INFO kablam!     |
Nov 04 16:34:50.411 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 04 16:34:50.411 INFO kablam! 
Nov 04 16:34:50.452 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
Nov 04 16:34:50.455 INFO kablam! su: No module specific data is present
Nov 04 16:34:51.343 INFO running `"docker" "rm" "-f" "86c7ce8ad6c2a13c99f8d118e4f94585b5d90b839b6d200824067321a5072a11"`
Nov 04 16:34:51.567 INFO blam! 86c7ce8ad6c2a13c99f8d118e4f94585b5d90b839b6d200824067321a5072a11